A Low Profile, Wideband and Dual-Polarized Base Station Antenna Based on the Dipole with High Input Impedance

HUANG He; MA Rui-hua

doi:10.12263/DZXB.20240018

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A Low Profile, Wideband and Dual-Polarized Base Station Antenna Based on the Dipole with High Input Impedance

PAPERS | 更新时间：2025-12-24

- A Low Profile, Wideband and Dual-Polarized Base Station Antenna Based on the Dipole with High Input Impedance
- ACTA ELECTRONICA SINICA Vol. 52, Issue 7, Pages: 2300-2306(2024)
- 作者机构：
  
  西安电子科技大学空间科学与技术学院，陕西西安 710126
- 作者简介：
- 基金信息：
  
  Innovation Capability Support Program of Shaanxi(S2022-ZC-TD-0060)
- DOI：10.12263/DZXB.20240018
  CLC： TN821+.4;TN828.6
- Received：04 January 2024，
  
  Revised：2024-05-07，
  
  Published：25 July 2024
- 稿件说明：
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黄河, 马瑞华. 基于高输入阻抗偶极子的低剖面宽带双极化基站天线[J]. 电子学报, 2024, 52(07): 2300-2306.

HUANG He, MA Rui-hua. A Low Profile, Wideband and Dual-Polarized Base Station Antenna Based on the Dipole with High Input Impedance[J]. Acta Electronica Sinica, 2024, 52(07): 2300-2306.
黄河, 马瑞华. 基于高输入阻抗偶极子的低剖面宽带双极化基站天线[J]. 电子学报, 2024, 52(07): 2300-2306. DOI：10.12263/DZXB.20240018

HUANG He, MA Rui-hua. A Low Profile, Wideband and Dual-Polarized Base Station Antenna Based on the Dipole with High Input Impedance[J]. Acta Electronica Sinica, 2024, 52(07): 2300-2306. DOI：10.12263/DZXB.20240018

摘要

本文提出了一种低剖面的宽带双极化基站天线.该天线由两个相互交叉的扇形偶极子演变而来.首先，在扇形偶极子末端增加环形窄微带和金属化通孔，使天线端口输入阻抗增大，达到降低天线高度的目的.然后，增大扇形偶极子臂的张角，产生第二谐振点，提高天线带宽.该双极化天线工作在2.17~2.7 GHz频段，可提供22%的带宽.而且，由于两个偶极子围绕几何中心高度对称，该天线在工作频带内可以获得较高的隔离度和交叉极化鉴别度，其中隔离度仿真值可达51 dB，0°交叉极化鉴别度仿真值可达48 dB.该天线的峰值增益仿真值高达9.6 dBi.综上所述，该天线具有高隔离、高交叉极化鉴别度和高增益等优点，在基站系统中具有良好的应用前景.

Abstract

In this paper

a wideband

dual-polarized antenna with extremely low profile is developed for base station application. The antenna evolved from two fan-shaped dipoles that crossed each other. By adding annular branches and metallized through holes at the end of the dipole

its port input impedance increases when the antenna occupies a lower height. Besides

the flare angle of the fan-shaped arm is increased so that a second resonant point can be generated to achieve the purpose of expanding the bandwidth. The dual-polarized antenna can provide a bandwidth of 22% in the 2.17~2.7 GHz band. Because the two dipoles is highly symmetrical about the geometric center

the isolation degree and cross polarization discrimination are high in the working frequency band

among which the simulation value of the isolation degree can reach 51 dB

and the simulation value of the cross polarization discrimination in the 0° can reach 48 dB. In addition

the simulated peak gain of the antenna is as high as 9.6 dBi. The antenna has the advantages of high isolation

high cross-polarization discrimination and high gain

and has a good application prospect in the base station system.

关键词

Keywords

references

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